*as kalluto begins to strip without a second thought, killua's mind goes into overdrive, panicking over how to react without rousing suspicion. he doesn't want to look directly at him, but looking away would make him seem more weird, because as kalluto clearly believes, this shouldn't be weird between brothers. he's already seen kalluto naked plenty of times before, in his hazy memories of their childhood. but like he realized back in the field, a lot has changed since then, and he can't help but feast his eyes on his brother's pert backside as his pants fall to the floor.

once again he's left feeling strangely frustrated by the sight, and not just toward himself for feeling anything about this at all. the arousal that usually would have him tingling in his own trousers stops just short of satisfaction, lingering in his gut with the guilt. he casts his gaze back and forth, pretending to be serving his duty as lookout, but the only one looking is him. he reads the text off his waistband with a snort.*

guess that answers that.